feat: add tests for conf

src/conf.rs

@@ -9,14 +9,13 @@ pub enum DacFamily {
 
 #[derive(Deserialize, Debug)]
 pub struct Conf {
-    laser_id: u8,
-    debug: bool,
-    redis_url: String,
-    dac_family: DacFamily,
-    dac_id: Option<u8>,
-    dac_url: Option<String>,
+    pub laser_id: u8,
+    pub debug: bool,
+    pub redis_url: String,
+    pub dac_family: DacFamily,
+    pub dac_id: Option<u8>,
+    pub dac_url: Option<String>,
 }
-
 pub fn load_config(path: &str) -> Result<Conf, Box<dyn std::error::Error>> {
     let settings = Config::builder()
         .add_source(config::File::with_name(path))
@@ -24,5 +23,6 @@ pub fn load_config(path: &str) -> Result<Conf, Box<dyn std::error::Error>> {
 
     let conf = settings.try_deserialize::<Conf>()?;
 
+    
     Ok(conf)
 }

tests/settings/valid.toml

@@ -0,0 +1,19 @@
+# file: valid.toml
+
+# The main key of your laser in LJ
+laser_id = 0
+
+# Activate for more debug 
+debug = "true"
+
+# Redis URL as IP:port  
+redis_url = "127.0.0.1"
+
+# Either Helios or Etherdream
+dac_family = "Helios"
+
+# For Helios. USB Device Id of the DAC 
+dac_id = 0
+
+# For Etherdream. IP of the DAC
+dac_url = "192.168.1.68"

tests/test_conf.rs

@@ -1,6 +1,32 @@
-use lj_rust::conf;
+use lj_rust::conf::{load_config, DacFamily};
 
 #[test]
-fn it_adds_two() {
-    assert_eq!(4, 4);
-}
+fn it_loads_a_valid_conf() {
+    let result = load_config("tests/settings/valid");
+    assert!(result.is_ok());
+}
+
+#[test]
+fn it_fails_invalid_conf() {
+    let result = load_config("tests/settings/empty");
+    assert!(result.is_err());
+}
+
+#[test]
+fn it_finds_struct_fields() {
+    let config = match load_config("tests/settings/valid") {
+        Ok(c) => c,
+        Err(err) => {
+            panic!("Unable to load config file: {:?}", err)
+        }
+    };
+    assert_eq!(config.laser_id, u8::from(0));
+    assert_eq!(config.debug, true);
+    assert_eq!(config.redis_url, String::from("127.0.0.1"));
+    assert!(match config.dac_family {
+        DacFamily::Helios => true,
+        _ => false,
+    });
+    assert_eq!(config.dac_id, Some(0));
+    assert_eq!(config.dac_url, Some(String::from("192.168.1.68")));
+}